:root{
  --bg:#0d0b1a; --bg2:#171233; --ink:#f4efe6; --ink-dim:#b9b2cc;
  --gold:#e8c37a; --gold-deep:#c9a24d; --line:rgba(232,195,122,.22);
  --card-w:min(88vw,330px); --radius:18px;
  --shadow:0 24px 60px rgba(0,0,0,.55);
  --safe-b:env(safe-area-inset-bottom,0px);
}
*{box-sizing:border-box}
[hidden]{display:none!important}
html,body{margin:0;height:100%}
body{
  background:radial-gradient(120% 80% at 50% -10%,#2a2059 0%,var(--bg2) 38%,var(--bg) 100%);
  color:var(--ink); font-family:"Be Vietnam Pro",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-weight:300; -webkit-font-smoothing:antialiased; overflow-x:hidden;
}
.sky{position:fixed;inset:0;z-index:0;pointer-events:none}
#stars{width:100%;height:100%;display:block;opacity:.75}

/* ---------- topbar ---------- */
.topbar{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;
  padding:calc(env(safe-area-inset-top,0px) + 14px) 18px 6px}
.brand{display:flex;align-items:center;gap:9px;font-size:13px;letter-spacing:.16em;
  text-transform:uppercase;color:var(--gold);font-weight:500}
.mark{width:19px;height:19px;fill:var(--gold);stroke:var(--gold);stroke-width:1.4;fill-opacity:.25}
.mark .rays{stroke-linecap:round}
.icon-btn{width:32px;height:32px;border-radius:50%;border:1px solid var(--line);background:transparent;
  color:var(--gold);font-size:14px;cursor:pointer;line-height:1}
.icon-btn:hover{background:rgba(232,195,122,.1)}

/* ---------- layout ---------- */
main{position:relative;z-index:1;padding:0 18px calc(40px + var(--safe-b));max-width:560px;margin:0 auto;
  animation:rise .5s ease both}
@keyframes rise{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}

.today-date{color:var(--ink-dim);font-size:13px;margin:26px 0 22px;letter-spacing:.05em;text-align:center}

/* ---------- card ---------- */
.stage{display:flex;justify-content:center;perspective:1400px}
.card-shell{width:var(--card-w);aspect-ratio:200/300;position:relative}
.card{position:absolute;inset:0;transform-style:preserve-3d;transition:transform .95s cubic-bezier(.2,.75,.25,1);
  cursor:pointer;border-radius:var(--radius)}
.card.is-flipped{transform:rotateY(180deg)}
.card:focus-visible{outline:2px solid var(--gold);outline-offset:6px}
.face{position:absolute;inset:0;backface-visibility:hidden;-webkit-backface-visibility:hidden;
  border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.back{background:#14102c}
.back-art{width:100%;height:100%;display:block}
.back-word{font-family:"Cormorant Garamond",Georgia,serif;font-size:15px;fill:var(--gold);fill-opacity:.85;letter-spacing:.08em}
.back-word.small{font-size:10.5px;fill-opacity:.5;letter-spacing:.14em}
.ray-set{transform-origin:100px 126px;animation:spin 44s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.card:not(.is-flipped) .back{animation:breathe 5.5s ease-in-out infinite}
@keyframes breathe{0%,100%{box-shadow:var(--shadow),0 0 0 rgba(232,195,122,0)}50%{box-shadow:var(--shadow),0 0 34px rgba(232,195,122,.22)}}

.front{transform:rotateY(180deg);background:linear-gradient(168deg,#1d1740 0%,#151030 60%,#100d24 100%);
  border:1px solid var(--line);display:flex;flex-direction:column;justify-content:center;
  padding:30px 22px;text-align:center;gap:16px}
.crest{width:44px;height:16px;align-self:center;color:var(--gold);margin-bottom:2px}
.message{font-family:"Cormorant Garamond",Georgia,serif;font-size:clamp(21px,6.2vw,26px);
  line-height:1.45;margin:0;font-weight:600;text-wrap:balance}
.rule{height:1px;background:linear-gradient(90deg,transparent,var(--gold-deep),transparent);opacity:.5;margin:0 20%}
.meaning{font-size:13.5px;line-height:1.7;color:var(--ink-dim);margin:0;font-weight:300;text-wrap:pretty}

/* ---------- cta ---------- */
.cta{text-align:center;margin-top:26px}
.primary{
  background:linear-gradient(180deg,#f0d193 0%,#c9a24d 100%);
  color:#231a05;border:0;border-radius:999px;padding:14px 30px;font-size:15px;font-weight:600;
  font-family:inherit;cursor:pointer;box-shadow:0 10px 26px rgba(201,162,77,.28);transition:transform .18s,filter .18s;
}
.primary:hover{filter:brightness(1.06)}
.primary:active{transform:scale(.97)}
.primary.wide{display:block;width:100%;margin-top:18px}
.hint{color:var(--ink-dim);font-size:12.5px;margin:13px 0 0}

.after{margin-top:28px}
.actions{display:flex;gap:9px;justify-content:center;flex-wrap:wrap}
.ghost{background:rgba(255,255,255,.045);border:1px solid var(--line);color:var(--ink);
  border-radius:999px;padding:9px 15px;font-size:13px;font-family:inherit;cursor:pointer;
  display:inline-flex;align-items:center;gap:7px;transition:background .18s}
.ghost:hover{background:rgba(232,195,122,.13)}
.ghost:disabled{opacity:.55;cursor:default}
.ghost:disabled .ico{display:inline-block;animation:xoay 1s linear infinite}
@keyframes xoay{to{transform:rotate(360deg)}}
.ghost[aria-pressed="true"]{color:var(--gold);border-color:var(--gold-deep)}
.ico{font-size:14px;line-height:1}
.countdown{text-align:center;color:var(--ink-dim);font-size:12px;margin:18px 0 0;letter-spacing:.03em}

.star{position:fixed;z-index:6;width:34px;height:34px;padding:0;cursor:pointer;
  border:0;background:transparent;display:grid;place-items:center;
  opacity:0;left:-999px;top:-999px;-webkit-tap-highlight-color:transparent;
  transition:opacity .6s ease,transform .25s}
.star svg{width:17px;height:17px;fill:var(--mau-sao,var(--gold));
  filter:drop-shadow(0 0 6px var(--mau-sao,var(--gold)))}
@supports (color:color-mix(in srgb,red 50%,transparent)){
  .star svg{filter:drop-shadow(0 0 6px color-mix(in srgb,var(--mau-sao,var(--gold)) 62%,transparent))}
}
.star.is-placed{opacity:.6;animation:twinkle 3.6s ease-in-out infinite}
.star:hover{opacity:1;transform:scale(1.25);animation:none}
.star:active{transform:scale(.9)}
.star:focus-visible{outline:2px solid var(--mau-sao,var(--gold));outline-offset:4px;border-radius:50%;opacity:1}
@keyframes twinkle{
  0%,100%{opacity:.35;transform:scale(.94)}
  50%{opacity:.95;transform:scale(1.06)}
}

/* ---------- Mùa Chín ---------- */
body.khoa-cuon{overflow:hidden}
.game{position:fixed;inset:0;z-index:30;display:none;
  background:radial-gradient(120% 90% at 50% 0%,#241d4a 0%,#141029 45%,#0b0917 100%)}
.game.hien{display:block}
.game-cv{position:absolute;inset:0;display:block;touch-action:none;cursor:crosshair}
.game-hud{position:absolute;top:0;left:0;right:0;z-index:2;pointer-events:none;
  display:flex;align-items:center;gap:12px;
  padding:calc(env(safe-area-inset-top,0px) + 14px) 58px 0 16px}
.g-diem{font-family:"Cormorant Garamond",Georgia,serif;font-size:30px;font-weight:600;color:var(--gold);
  display:flex;align-items:baseline;gap:8px;text-shadow:0 2px 12px rgba(0,0,0,.6)}
.g-nhan{font-family:"Be Vietnam Pro",sans-serif;font-size:14px;font-weight:600;color:#8fd6c2}
.g-mang{margin-left:auto;font-size:17px;letter-spacing:3px;color:#c94f5e;text-shadow:0 2px 10px rgba(0,0,0,.6)}
.g-mang .tim{opacity:.3}
.g-mang .tim.day{opacity:1}

.game-mo,.game-het{position:absolute;inset:0;z-index:3;display:flex;flex-direction:column;
  align-items:center;justify-content:center;gap:12px;text-align:center;padding:26px;
  background:rgba(9,7,20,.72);backdrop-filter:blur(4px);animation:fade .3s ease both}
.game-mo[hidden],.game-het[hidden]{display:none}
.game-mo h2,.game-het h2{font-family:"Cormorant Garamond",Georgia,serif;font-size:38px;font-weight:600;
  margin:0;color:var(--gold);letter-spacing:.04em}
.g-dao{width:min(70vw,250px);margin-bottom:2px;filter:drop-shadow(0 6px 22px rgba(232,195,122,.34))}
.g-dao svg{width:100%;height:auto;display:block}
.g-phu,.g-tong{color:var(--ink-dim);font-size:14px;margin:0;line-height:1.7}
.g-cach{color:var(--ink-dim);font-size:12px;opacity:.65;margin:6px 0 0}
.game-het .ghost{margin-top:2px}
.ephemeral{text-align:center;color:var(--ink-dim);font-size:12.5px;line-height:1.8;margin:0 0 16px;opacity:.85}

/* ---------- sheet ---------- */
.sheet-wrap{position:fixed;inset:0;z-index:20;display:flex;align-items:flex-end;justify-content:center}
.sheet-bg{position:absolute;inset:0;background:rgba(6,5,14,.66);backdrop-filter:blur(3px);animation:fade .25s ease both}
@keyframes fade{from{opacity:0}to{opacity:1}}
.sheet{position:relative;width:100%;max-width:560px;max-height:86vh;overflow-y:auto;
  background:linear-gradient(170deg,#1b1540,#120f2a);border:1px solid var(--line);border-bottom:0;
  border-radius:22px 22px 0 0;padding:10px 20px calc(24px + var(--safe-b));animation:up .3s cubic-bezier(.2,.8,.3,1) both}
@keyframes up{from{transform:translateY(28px);opacity:0}to{transform:none;opacity:1}}
.handle{width:42px;height:4px;border-radius:99px;background:rgba(255,255,255,.22);margin:4px auto 14px;cursor:pointer}
.sheet h3{font-family:"Cormorant Garamond",Georgia,serif;font-size:23px;margin:0 0 12px;font-weight:600}
.sheet h3[hidden]+#sheet-body .ve:first-child{margin-top:2px}
.sheet p{font-size:14px;line-height:1.75;color:var(--ink-dim);margin:0 0 12px}
.sheet .quote{font-family:"Cormorant Garamond",Georgia,serif;font-size:19px;line-height:1.55;color:var(--ink);
  border-left:2px solid var(--gold-deep);padding-left:14px;margin:0 0 14px}
textarea{width:100%;min-height:130px;background:rgba(0,0,0,.28);border:1px solid var(--line);
  border-radius:12px;color:var(--ink);font-family:inherit;font-size:14px;line-height:1.65;padding:12px;resize:vertical}
textarea:focus{outline:1px solid var(--gold-deep)}

/* ---------- toast ---------- */
.toast{position:fixed;left:50%;bottom:calc(30px + var(--safe-b));transform:translateX(-50%);z-index:40;
  background:rgba(232,195,122,.95);color:#231a05;padding:10px 18px;border-radius:999px;font-size:13px;
  font-weight:500;box-shadow:0 10px 30px rgba(0,0,0,.4);animation:up .25s ease both}

@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
}

/* ---------- màn hình phủ kín dùng chung cho các ngôi sao ---------- */
.hoadang,.ho,.hopho,.gotu{position:fixed;inset:0;z-index:30;display:none}
.hoadang.hien,.ho.hien,.hopho.hien,.gotu.hien{display:block}
.hd-cv,.ho-cv,.ht-cv{position:absolute;inset:0;display:block;width:100%;height:100%}
.hd-dong,.ho-dong,.ht-dong,.g-dong,.gt-dong{position:absolute;z-index:8;
  top:calc(env(safe-area-inset-top,0px) + 14px);right:16px;
  width:34px;height:34px;border-radius:50%;cursor:pointer;
  border:1px solid rgba(255,255,255,.16);background:rgba(0,0,0,.32);color:var(--ink);font-size:14px;line-height:1}
.hd-dong:hover,.ho-dong:hover,.ht-dong:hover,.g-dong:hover,.gt-dong:hover{background:rgba(255,255,255,.12)}

/* ---------- thả đèn hoa đăng ---------- */
.hd-cv{touch-action:none}
.hd-lop{position:absolute;left:0;right:0;bottom:0;z-index:3;
  padding:22px 22px calc(30px + env(safe-area-inset-bottom,0px));
  display:flex;flex-direction:column;align-items:center;gap:12px;text-align:center}
.hd-viet[hidden],.hd-xong[hidden]{display:none}
.hd-viet,.hd-xong{display:flex;flex-direction:column;align-items:center;gap:12px;
  width:100%;max-width:420px;animation:rise .45s ease both}
.hd-hoi{font-family:"Cormorant Garamond",Georgia,serif;font-size:25px;margin:0;color:var(--ink)}
.hd-o{width:100%;min-height:88px;background:rgba(0,0,0,.34);border:1px solid rgba(240,168,96,.3);
  border-radius:14px;color:var(--ink);font-family:inherit;font-size:15px;line-height:1.6;padding:12px;resize:none}
.hd-o:focus{outline:1px solid rgba(240,168,96,.7)}
.hd-ghi{font-size:11.5px;color:var(--ink-dim);opacity:.65;margin:0;line-height:1.6}
.hd-loi{font-family:"Cormorant Garamond",Georgia,serif;font-size:27px;margin:0;color:#f0c48a}

/* ---------- hồ nước ---------- */
.ho-cv{touch-action:none;cursor:default}
.ho-tieng{position:absolute;z-index:8;top:calc(env(safe-area-inset-top,0px) + 14px);left:16px;
  width:34px;height:34px;border-radius:50%;cursor:pointer;display:grid;place-items:center;
  border:1px solid rgba(255,255,255,.16);background:rgba(0,0,0,.32);color:var(--ink)}
.ho-tieng:hover{background:rgba(255,255,255,.12)}
.ho-tieng.tat{color:rgba(244,239,230,.42)}
.ho-cv.tro{cursor:pointer}          /* đang trỏ vào một con ếch */

/* ---------- hộp thở ---------- */
.ht-giua{position:absolute;inset:0;z-index:3;display:none;flex-direction:column;
  align-items:center;justify-content:center;gap:6px;pointer-events:none;text-align:center;padding:0 30px}
.ht-giua.hien{display:flex}
.ht-nhip{font-family:"Cormorant Garamond",Georgia,serif;font-size:27px;margin:0;color:#ded4f5;line-height:1.25}
.ht-dem{font-family:"Be Vietnam Pro",sans-serif;font-size:14px;margin:0;color:rgba(200,186,240,.55);
  font-variant-numeric:tabular-nums}
.ht-nhac{position:absolute;left:50%;transform:translateX(-50%);z-index:3;pointer-events:none;
  bottom:calc(112px + env(safe-area-inset-bottom,0px));
  width:min(88vw,340px);margin:0;text-align:center;
  font-size:12.5px;line-height:1.75;color:rgba(200,186,240,.6);transition:opacity 1.8s ease}
.ht-nhac.mo{opacity:0}
.ht-vong{position:absolute;left:0;right:0;z-index:3;text-align:center;margin:0;pointer-events:none;
  bottom:calc(78px + env(safe-area-inset-bottom,0px));font-size:12px;color:rgba(200,186,240,.45);letter-spacing:.08em}
.ht-thoat{position:absolute;left:50%;transform:translateX(-50%);z-index:4;
  bottom:calc(30px + env(safe-area-inset-bottom,0px));
  background:transparent;border:1px solid rgba(200,186,240,.25);color:rgba(200,186,240,.7);
  border-radius:999px;padding:8px 16px;font-size:12.5px;font-family:inherit;cursor:pointer}
.ht-thoat[hidden]{display:none}
.ht-thoat:hover{background:rgba(200,186,240,.1)}

.ht-chon,.ht-luuy{position:absolute;inset:0;z-index:4;overflow-y:auto;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;text-align:center;padding:30px 22px calc(30px + env(safe-area-inset-bottom,0px));
  background:rgba(9,7,20,.66);backdrop-filter:blur(5px);animation:fade .3s ease both}
.ht-chon[hidden],.ht-luuy[hidden]{display:none}
.ht-chon h2{font-family:"Cormorant Garamond",Georgia,serif;font-size:36px;font-weight:600;margin:0;color:#ded4f5}
.ht-phu{color:var(--ink-dim);font-size:13.5px;margin:0}
.ht-ds{display:flex;flex-direction:column;gap:9px;width:100%;max-width:400px;margin-top:4px}
.ht-the{display:flex;flex-direction:column;gap:4px;text-align:left;
  background:rgba(255,255,255,.045);border:1px solid rgba(200,186,240,.18);border-radius:14px;
  padding:14px 16px;cursor:pointer;font-family:inherit;transition:background .18s,border-color .18s}
.ht-the:hover{background:rgba(184,168,232,.14);border-color:rgba(200,186,240,.45)}
/* trạng thái của người dùng là dòng chính, tên kỹ thuật chỉ là chú thích */
.ht-the-khi{font-family:"Cormorant Garamond",Georgia,serif;font-size:21px;font-weight:600;
  color:#ded4f5;line-height:1.3}
.ht-the-ten{font-size:12px;color:rgba(232,195,122,.8);letter-spacing:.02em;
  font-variant-numeric:tabular-nums}
.ht-luuy-nut{background:none;border:0;color:rgba(200,186,240,.5);font-family:inherit;font-size:12px;
  text-decoration:underline;text-underline-offset:3px;cursor:pointer;margin-top:6px;padding:6px}
.ht-luuy-nut:hover{color:var(--ink)}

.ht-tin-trong{width:100%;max-width:400px;display:flex;flex-direction:column;gap:12px;align-items:center}
.ht-tin-trong h3{font-family:"Cormorant Garamond",Georgia,serif;font-size:26px;font-weight:600;margin:0;color:#ded4f5}
.ht-tin-trong p{color:var(--ink-dim);font-size:13.5px;line-height:1.75;margin:0}
.ht-tin-canh{border:1px solid rgba(232,195,122,.3);background:rgba(232,195,122,.07);
  border-radius:12px;padding:11px 13px;color:rgba(240,215,170,.95)!important;font-size:12.5px!important}
.ht-tin-canh[hidden]{display:none}
.ht-tin-goi{color:rgba(232,195,122,.85)!important;font-size:12.5px!important;letter-spacing:.04em}
.ht-nguon{font-size:11.5px!important;opacity:.6;border-top:1px solid var(--line);padding-top:12px;margin-top:2px!important}
.ht-tin-trong .primary,.ht-tin-trong .ghost{width:100%;max-width:280px}

/* ---------- nối sao thành chòm ---------- */
.chomsao{position:fixed;inset:0;z-index:30;display:none}
.chomsao.hien{display:block}
.cs-cv{position:absolute;inset:0;display:block;width:100%;height:100%;touch-action:none;cursor:crosshair}
.cs-dong{position:absolute;z-index:8;top:calc(env(safe-area-inset-top,0px) + 14px);right:16px;
  width:34px;height:34px;border-radius:50%;cursor:pointer;
  border:1px solid rgba(255,255,255,.16);background:rgba(0,0,0,.32);color:var(--ink);font-size:14px;line-height:1}
.cs-dong:hover{background:rgba(255,255,255,.12)}
.cs-tren{position:absolute;left:0;right:0;z-index:3;pointer-events:none;text-align:center;
  top:0;padding:calc(env(safe-area-inset-top,0px) + 52px) 60px 20px;
  background:linear-gradient(to bottom,rgba(8,7,22,.9) 0%,rgba(8,7,22,.7) 60%,rgba(8,7,22,0) 100%)}
.cs-ten{font-family:"Cormorant Garamond",Georgia,serif;font-size:clamp(24px,7vw,31px);margin:0;
  color:#f4efe6;letter-spacing:.02em;line-height:1.15;text-wrap:balance}
.cs-phu{font-size:11.5px;margin:5px 0 0;color:rgba(232,195,122,.7);letter-spacing:.04em}
.cs-nhac{position:absolute;left:0;right:0;z-index:3;pointer-events:none;text-align:center;margin:0;
  bottom:calc(46px + env(safe-area-inset-bottom,0px));
  font-size:12.5px;color:rgba(200,193,216,.5);transition:opacity 1.2s ease}
.cs-nhac.mo{opacity:0}
.cs-nhac.tren{bottom:auto;top:calc(env(safe-area-inset-top,0px) + 170px)}
.cs-xong{position:absolute;left:0;right:0;bottom:0;z-index:4;text-align:center;
  padding:44px 26px calc(30px + env(safe-area-inset-bottom,0px));
  display:flex;flex-direction:column;align-items:center;gap:12px;animation:rise .6s ease both;
  background:linear-gradient(to top,rgba(8,7,22,.95) 0%,rgba(8,7,22,.88) 55%,rgba(8,7,22,0) 100%)}
.cs-xong[hidden]{display:none}
.cs-loi{font-size:13.5px;line-height:1.8;color:var(--ink-dim);margin:0;max-width:400px;
  max-height:34vh;overflow-y:auto;-webkit-overflow-scrolling:touch}
.cs-cadao{font-family:"Cormorant Garamond",Georgia,serif;font-size:18px;line-height:1.55;
  color:rgba(232,195,122,.9);margin:0;white-space:pre-line;font-style:italic}
.cs-cadao[hidden]{display:none}
.cs-xong .primary{margin-top:2px}
.cs-goc{position:absolute;left:50%;transform:translateX(-50%);z-index:5;
  top:calc(env(safe-area-inset-top,0px) + 126px);
  background:rgba(0,0,0,.35);border:1px solid rgba(232,195,122,.3);color:rgba(232,195,122,.85);
  border-radius:999px;padding:6px 14px;font-size:11.5px;font-family:inherit;cursor:pointer}
.cs-goc[hidden]{display:none}
.cs-goc:hover{background:rgba(232,195,122,.14)}

/* nút chép địa chỉ, nằm cạnh nút đóng của mọi trò */
.nut-link{position:absolute;z-index:8;
  top:calc(env(safe-area-inset-top,0px) + 14px);right:58px;
  width:34px;height:34px;border-radius:50%;cursor:pointer;display:grid;place-items:center;
  border:1px solid rgba(255,255,255,.16);background:rgba(0,0,0,.32);color:var(--ink);
  -webkit-tap-highlight-color:transparent}
.nut-link svg{width:17px;height:17px}
.nut-link:hover{background:rgba(255,255,255,.12)}

/* số ếch trong hồ — xếp cùng hàng với nút chép link và dấu x, bên trái hai nút đó */
.ho-dem{position:absolute;z-index:8;margin:0;pointer-events:none;
  top:calc(env(safe-area-inset-top,0px) + 14px);right:100px;
  min-width:34px;height:34px;line-height:34px;text-align:center;
  font-size:13px;color:rgba(190,225,240,.5)}

/* báo đang tua nhanh trong hồ */
.ho-nhanh{position:absolute;left:0;right:0;z-index:4;text-align:center;margin:0;pointer-events:none;
  top:calc(env(safe-area-inset-top,0px) + 62px);
  font-size:12px;letter-spacing:.14em;color:rgba(190,225,240,.6);
  animation:tho-nhanh 1.4s ease-in-out infinite}
@keyframes tho-nhanh{0%,100%{opacity:.35}50%{opacity:.85}}

/* ---------- gõ từ tiếng Anh ---------- */
.gotu{background:radial-gradient(120% 90% at 50% 0%,#182a3a 0%,#101a28 55%,#0a1119 100%);
  overflow-y:auto;-webkit-overflow-scrolling:touch}
.gt-nhap{position:absolute;opacity:0;pointer-events:none;width:1px;height:1px;
  left:50%;top:40%;border:0;padding:0;font-size:16px}   /* 16px để iOS đừng tự phóng to trang */
.gt-doc{position:absolute;z-index:8;top:calc(env(safe-area-inset-top,0px) + 14px);left:16px;
  width:34px;height:34px;border-radius:50%;cursor:pointer;display:grid;place-items:center;
  border:1px solid rgba(255,255,255,.16);background:rgba(0,0,0,.32);color:var(--ink)}
.gt-doc svg{width:18px;height:18px}
.gt-doc:hover{background:rgba(255,255,255,.12)}
.gt-doc.tat{color:rgba(244,239,230,.42)}
.gt-trong{min-height:100%;display:flex;align-items:center;justify-content:center;
  padding:calc(env(safe-area-inset-top,0px) + 68px) 22px calc(env(safe-area-inset-bottom,0px) + 32px)}

.gt-loi{font-family:"Cormorant Garamond",Georgia,serif;font-size:27px;margin:0 0 6px;color:#f0c48a;text-align:center}
.gt-phu{margin:0 0 18px;font-size:13px;line-height:1.6;color:rgba(244,239,230,.6);text-align:center}
.gt-nguon{margin:16px 0 0;font-size:11px;line-height:1.6;color:rgba(244,239,230,.34);text-align:center}

/* chọn cấp */
.gt-chon{width:100%;max-width:420px}
.gt-the{display:block;width:100%;margin:0 0 10px;padding:14px 16px;text-align:left;cursor:pointer;
  border:1px solid rgba(255,255,255,.14);border-radius:14px;background:rgba(255,255,255,.045);
  color:var(--ink);-webkit-tap-highlight-color:transparent}
.gt-the:hover{background:rgba(255,255,255,.09);border-color:rgba(233,169,192,.4)}
.gt-the-ten{display:block;font-size:16px;margin-bottom:3px}
.gt-the-mo{display:block;font-size:12px;color:rgba(244,239,230,.55)}
.gt-the-vd{display:block;margin-top:6px;font-size:12px;letter-spacing:.06em;color:rgba(233,169,192,.72)}

/* đang gõ */
.gt-choi{width:100%;max-width:520px;text-align:center}
.gt-dem{margin:0 0 26px;font-size:12px;letter-spacing:.16em;color:rgba(244,239,230,.38)}
.gt-tu{margin:0;font-size:clamp(30px,9vw,46px);letter-spacing:.06em;line-height:1.25;
  font-family:ui-monospace,"SF Mono",Menlo,Consolas,monospace;word-break:break-word}
.gt-chu{color:rgba(244,239,230,.28);transition:color .12s ease}
.gt-chu.xong{color:#e9a9c0}
.gt-chu.toi{color:rgba(244,239,230,.72);border-bottom:2px solid rgba(233,169,192,.8);
  animation:gt-nhay 1.1s ease-in-out infinite}
@keyframes gt-nhay{0%,100%{border-bottom-color:rgba(233,169,192,.8)}50%{border-bottom-color:rgba(233,169,192,.15)}}
.gt-chu.sai{animation:gt-rung .22s ease;color:#e98a8a}
@keyframes gt-rung{0%,100%{transform:translateX(0)}25%{transform:translateX(-4px)}75%{transform:translateX(4px)}}
.gt-tu.trot .gt-chu{color:#9fd6b4}
.gt-nghia{margin:16px 0 0;font-family:"Cormorant Garamond",Georgia,serif;font-size:22px;color:#f0c48a}
.gt-nhac{margin:30px 0 0;font-size:12px;line-height:1.7;color:rgba(244,239,230,.32)}

/* xem lại */
.gt-het{width:100%;max-width:460px;text-align:center}
.gt-so{display:flex;justify-content:center;gap:10px;margin:0 0 22px}
.gt-so div{flex:1;padding:12px 6px;border:1px solid rgba(255,255,255,.12);border-radius:12px;
  background:rgba(255,255,255,.04)}
.gt-so b{display:block;font-size:24px;font-weight:400;color:#e9a9c0}
.gt-so span{display:block;margin-top:3px;font-size:11px;color:rgba(244,239,230,.5)}
.gt-vap{list-style:none;margin:0 0 22px;padding:0;text-align:left}
.gt-vap li{padding:8px 12px;border-bottom:1px solid rgba(255,255,255,.07);font-size:14px}
.gt-vap li:last-child{border-bottom:0}
.gt-vap b{font-weight:400;color:#e9a9c0;font-family:ui-monospace,"SF Mono",Menlo,Consolas,monospace}
.gt-vap i{font-style:normal;color:rgba(244,239,230,.6);margin-left:8px}
.gt-nut{display:flex;gap:10px;justify-content:center;flex-wrap:wrap}
.gt-lai,.gt-doicap{padding:10px 18px;border-radius:999px;cursor:pointer;font-size:14px;
  border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.05);color:var(--ink);
  -webkit-tap-highlight-color:transparent}
.gt-lai:hover,.gt-doicap:hover{background:rgba(255,255,255,.11)}

/* ---------- bầu trời đêm nay ---------- */
.troidem{position:fixed;inset:0;z-index:30;display:none;background:#070b14;overflow:hidden}
.troidem.hien{display:block}
.td-cv{position:absolute;inset:0;display:block;width:100%;height:100%;touch-action:none;cursor:grab}
.td-cv:active{cursor:grabbing}
.td-dong{position:absolute;z-index:8;top:calc(env(safe-area-inset-top,0px) + 14px);right:16px;
  width:34px;height:34px;border-radius:50%;cursor:pointer;
  border:1px solid rgba(255,255,255,.16);background:rgba(0,0,0,.42);color:var(--ink);font-size:14px;line-height:1}
.td-dong:hover{background:rgba(255,255,255,.14)}

.td-tin{position:absolute;z-index:6;left:0;right:0;bottom:calc(env(safe-area-inset-bottom,0px) + 62px);
  padding:0 20px;text-align:center;pointer-events:none;
  text-shadow:0 1px 10px rgba(0,0,0,.9)}
.td-dong1{margin:0 0 4px;font-size:14px;color:rgba(240,232,214,.95)}
.td-dong2{margin:0 0 3px;font-size:12px;line-height:1.6;color:rgba(200,214,238,.8)}
.td-dong3{margin:0;font-size:12px;color:rgba(174,191,240,.8)}

.td-thanh{position:absolute;z-index:7;left:0;right:0;bottom:calc(env(safe-area-inset-bottom,0px) + 16px);
  display:flex;gap:10px;justify-content:center}
.td-thanh button{padding:8px 16px;border-radius:999px;cursor:pointer;font-size:13px;
  border:1px solid rgba(255,255,255,.18);background:rgba(0,0,0,.42);color:var(--ink);
  -webkit-tap-highlight-color:transparent}
.td-thanh button:hover{background:rgba(255,255,255,.14)}
.td-thanh button.bat{border-color:rgba(174,191,240,.7);color:#aebff0}

.td-bang{position:absolute;inset:0;z-index:9;display:grid;place-items:center;
  background:rgba(6,10,20,.82);padding:22px}
.td-bang[hidden]{display:none}
.td-hop{width:100%;max-width:380px;text-align:center}
.td-tieu{margin:0 0 14px;font-family:"Cormorant Garamond",Georgia,serif;font-size:25px;color:#f0c48a}
.td-dinhvi{width:100%;padding:11px;margin:0 0 14px;border-radius:12px;cursor:pointer;font-size:14px;
  border:1px solid rgba(174,191,240,.45);background:rgba(174,191,240,.1);color:var(--ink)}
.td-dinhvi:disabled{opacity:.6;cursor:default}
.td-hay{margin:0 0 10px;font-size:12px;color:rgba(244,239,230,.5)}
.td-tp{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-bottom:16px}
.td-tp button{padding:7px 13px;border-radius:999px;cursor:pointer;font-size:13px;
  border:1px solid rgba(255,255,255,.14);background:rgba(255,255,255,.05);color:var(--ink)}
.td-tp button:hover{background:rgba(255,255,255,.11)}
.td-tp button.dang{border-color:rgba(174,191,240,.7);color:#aebff0}
.td-thoi{padding:8px 18px;border-radius:999px;cursor:pointer;font-size:13px;
  border:1px solid rgba(255,255,255,.14);background:transparent;color:rgba(244,239,230,.6)}
.td-gap{margin:5px 0 0;font-size:12px;color:rgba(240,196,138,.92)}

/* ---------- học nói tiếng Anh ---------- */
.anhngu{position:fixed;inset:0;z-index:30;display:none;overflow:hidden;
  background:radial-gradient(120% 70% at 50% 0%,#1d2440 0%,#141a30 45%,#0c1020 100%)}
.anhngu.hien{display:block}
.an-dong{position:absolute;z-index:8;top:calc(env(safe-area-inset-top,0px) + 14px);right:16px;
  width:34px;height:34px;border-radius:50%;cursor:pointer;
  border:1px solid rgba(255,255,255,.16);background:rgba(0,0,0,.32);color:var(--ink);font-size:14px;line-height:1}
.an-loa{position:absolute;z-index:8;top:calc(env(safe-area-inset-top,0px) + 14px);left:16px;
  width:34px;height:34px;border-radius:50%;cursor:pointer;display:grid;place-items:center;
  border:1px solid rgba(255,255,255,.16);background:rgba(0,0,0,.32);color:var(--ink)}
.an-dong:hover,.an-loa:hover{background:rgba(255,255,255,.12)}
.an-loa.tat{color:rgba(244,239,230,.42)}
.an-trong{position:absolute;inset:0;display:flex}
.an-man{flex:1;display:flex;flex-direction:column;min-height:0;
  padding:calc(env(safe-area-inset-top,0px) + 62px) 16px calc(16px + var(--safe-b))}
.an-tua{margin:0 0 6px;text-align:center;font-family:"Cormorant Garamond",Georgia,serif;
  font-size:26px;font-weight:600;color:var(--ink)}
.an-phu{margin:0 0 16px;text-align:center;font-size:13px;line-height:1.6;color:var(--ink-dim)}
.an-ds{flex:1;min-height:0;overflow-y:auto;display:flex;flex-direction:column;gap:10px;-webkit-overflow-scrolling:touch}
.an-the{display:flex;align-items:center;gap:12px;width:100%;text-align:left;cursor:pointer;
  padding:13px 14px;border-radius:14px;border:1px solid var(--line);background:rgba(255,255,255,.04);color:var(--ink)}
.an-the:hover{background:rgba(232,195,122,.09)}
.an-the-hinh{font-size:22px;line-height:1}
.an-the-chu{flex:1;display:flex;flex-direction:column;gap:3px}
.an-the-chu b{font-weight:500;font-size:15.5px}
.an-the-chu i{font-style:normal;font-size:12.5px;color:var(--ink-dim)}
.an-the-so{font-size:11.5px;color:rgba(232,195,122,.7);white-space:nowrap}
.an-choi{padding-top:calc(env(safe-area-inset-top,0px) + 58px)}
.an-dau{display:flex;align-items:center;gap:10px;margin-bottom:10px}
.an-quay{width:30px;height:30px;border-radius:50%;cursor:pointer;font-size:19px;line-height:1;
  border:1px solid var(--line);background:rgba(255,255,255,.04);color:var(--ink)}
.an-ten{flex:1;font-size:14px;letter-spacing:.04em;color:var(--ink)}
.an-cham{display:flex;gap:5px}
.an-cham i{width:6px;height:6px;border-radius:50%;background:rgba(255,255,255,.18)}
.an-cham i.roi{background:var(--gold)}
.an-thoai{flex:1;min-height:0;overflow-y:auto;display:flex;flex-direction:column;justify-content:flex-end;gap:9px;
  padding:4px 2px 10px;-webkit-overflow-scrolling:touch}
.an-bong{max-width:86%;text-align:left;cursor:pointer;padding:10px 13px;border-radius:16px;
  border:1px solid transparent;display:flex;flex-direction:column;gap:3px;animation:anHien .28s ease}
.an-bong.an-ho{align-self:flex-start;background:rgba(255,255,255,.07);border-color:rgba(255,255,255,.1);color:var(--ink);
  border-bottom-left-radius:6px}
.an-bong.an-minh{align-self:flex-end;background:rgba(232,195,122,.15);border-color:var(--line);color:var(--ink);
  border-bottom-right-radius:6px}
.an-en{font-size:15.5px;line-height:1.45}
.an-vi{font-size:12.5px;line-height:1.45;color:var(--ink-dim)}
@keyframes anHien{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.an-day{flex-shrink:0;display:flex;flex-direction:column;gap:8px;padding-top:4px}
.an-nhac{margin:0 0 2px;font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;color:rgba(232,195,122,.65)}
.an-dap{width:100%;text-align:left;cursor:pointer;padding:11px 13px;border-radius:13px;
  border:1px solid var(--line);background:rgba(255,255,255,.05);color:var(--ink);
  display:flex;flex-direction:column;gap:3px;transition:background .18s ease,border-color .18s ease,opacity .18s ease}
.an-dap:hover:not(:disabled){background:rgba(232,195,122,.1)}
.an-dap:disabled{cursor:default;opacity:.45}
.an-dap.dung{background:rgba(126,200,140,.18);border-color:rgba(126,200,140,.5);opacity:1}
.an-dap.sai{background:rgba(224,101,111,.14);border-color:rgba(224,101,111,.45);animation:anLac .3s ease}
.an-visao{font-size:12px;line-height:1.5;color:#f0a9ad}
.an-dap.sai .an-visao{margin-top:4px}
@keyframes anLac{0%,100%{transform:none}25%{transform:translateX(-5px)}75%{transform:translateX(5px)}}
.an-meo{margin:2px 0 0;padding:9px 12px;border-radius:11px;font-size:12.5px;line-height:1.55;
  background:rgba(232,195,122,.1);border:1px solid var(--line);color:var(--ink-dim);animation:anHien .28s ease}
.an-meo b{color:var(--gold);font-weight:500}
.an-cau{width:100%;text-align:left;cursor:pointer;padding:11px 13px;border-radius:13px;
  border:1px solid var(--line);background:rgba(255,255,255,.04);color:var(--ink);display:flex;flex-direction:column;gap:3px}
.an-cau:hover{background:rgba(232,195,122,.09)}
.an-nut{display:flex;gap:10px;padding-top:14px}
.an-nut button{flex:1;cursor:pointer;padding:12px;border-radius:13px;font-size:14px;
  border:1px solid var(--line);background:rgba(255,255,255,.05);color:var(--ink)}
.an-nut .an-lai{background:rgba(232,195,122,.16);color:var(--gold)}
.an-nut button:hover{background:rgba(232,195,122,.12)}

/* nói tự do: mic, ô gõ, lời báo, câu sửa */
.an-che{display:flex;gap:8px;margin:0 0 14px}
.an-che button{flex:1;cursor:pointer;padding:9px;border-radius:11px;font-size:13px;
  border:1px solid var(--line);background:rgba(255,255,255,.04);color:var(--ink-dim)}
.an-che button.dang{background:rgba(232,195,122,.16);color:var(--gold);border-color:rgba(232,195,122,.45)}
.an-mic-hang{display:flex}
.an-mic{flex:1;cursor:pointer;padding:15px;border-radius:14px;font-size:15px;letter-spacing:.02em;
  border:1px solid rgba(232,195,122,.45);background:rgba(232,195,122,.14);color:var(--gold)}
.an-mic:disabled{opacity:.5;cursor:default}
.an-mic.dang{background:rgba(224,101,111,.18);border-color:rgba(224,101,111,.5);color:#f0a9ad;
  animation:anTho 1.4s ease-in-out infinite}
@keyframes anTho{0%,100%{opacity:1}50%{opacity:.62}}
.an-go{margin-top:8px;width:100%;padding:11px 13px;border-radius:12px;font-size:14px;
  border:1px solid var(--line);background:rgba(255,255,255,.04);color:var(--ink);
  font-family:inherit;opacity:.65}
.an-go:focus{outline:none;opacity:1;border-color:rgba(232,195,122,.5)}
.an-go.ro{opacity:1}
.an-loi{margin:0 0 8px;padding:9px 12px;border-radius:11px;font-size:12.5px;line-height:1.55;
  background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--ink-dim)}
.an-loi.nang{background:rgba(224,101,111,.12);border-color:rgba(224,101,111,.4);color:#f0a9ad}
.an-sua{display:block;margin-top:5px;padding-top:5px;font-size:12.5px;line-height:1.45;
  color:var(--gold);border-top:1px solid rgba(232,195,122,.25)}
.an-tudo{background:rgba(159,216,176,.16)!important;color:#9fd8b0!important;border-color:rgba(159,216,176,.4)!important}

/* chế độ nói theo cảnh */
.an-goiy{margin-top:8px;width:100%;cursor:pointer;padding:10px;border-radius:12px;font-size:13px;
  border:1px dashed rgba(232,195,122,.35);background:transparent;color:var(--ink-dim)}
.an-goiy:hover{background:rgba(232,195,122,.08);color:var(--ink)}
.an-goi-hop{display:flex;flex-direction:column;gap:8px;margin-top:10px;animation:anHien .3s ease}
.an-mo{display:block;margin-top:5px;padding-top:5px;font-size:11.5px;line-height:1.45;
  color:rgba(244,239,230,.45);border-top:1px solid rgba(255,255,255,.1)}
.an-thua{margin:-8px 0 14px;font-size:11.5px;line-height:1.5;text-align:center;color:rgba(244,239,230,.42)}

/* ---------- ngôi sao luyện phát âm ---------- */
.phatam{position:fixed;inset:0;z-index:30;display:none;overflow:hidden;
  background:radial-gradient(120% 70% at 50% 0%,#1f2338 0%,#15182b 45%,#0b0e1c 100%)}
.phatam.hien{display:block}
.pa-dong{position:absolute;z-index:8;top:calc(env(safe-area-inset-top,0px) + 14px);right:16px;
  width:34px;height:34px;border-radius:50%;cursor:pointer;
  border:1px solid rgba(255,255,255,.16);background:rgba(0,0,0,.32);color:var(--ink);font-size:14px;line-height:1}
.pa-dong:hover{background:rgba(255,255,255,.12)}
.pa-trong{position:absolute;inset:0;overflow-y:auto;-webkit-overflow-scrolling:touch}
.pa-man{max-width:560px;margin:0 auto;
  padding:calc(env(safe-area-inset-top,0px) + 62px) 16px calc(28px + var(--safe-b))}
.pa-tua{margin:0 0 6px;text-align:center;font-family:"Cormorant Garamond",Georgia,serif;
  font-size:26px;font-weight:600;color:var(--ink)}
.pa-phu{margin:0 0 18px;text-align:center;font-size:13px;line-height:1.6;color:var(--ink-dim)}
.pa-nhom{margin:18px 0 8px;font-size:11.5px;letter-spacing:.13em;text-transform:uppercase;color:rgba(232,195,122,.72)}
.pa-ds{display:flex;flex-direction:column;gap:9px}
.pa-the{display:flex;align-items:center;gap:12px;width:100%;text-align:left;cursor:pointer;
  padding:12px 14px;border-radius:14px;border:1px solid var(--line);background:rgba(255,255,255,.04);color:var(--ink)}
.pa-the:hover{background:rgba(232,195,122,.09)}
.pa-ipa{flex:0 0 auto;min-width:58px;font-size:15px;font-weight:500;color:var(--gold)}
.pa-the-chu{flex:1;display:flex;flex-direction:column;gap:3px;min-width:0}
.pa-the-chu b{font-weight:500;font-size:14.5px}
.pa-the-chu i{font-style:normal;font-size:12px;line-height:1.5;color:var(--ink-dim)}
.pa-sao{flex:0 0 auto;font-size:8px;letter-spacing:2px;color:rgba(232,195,122,.55)}
.pa-thua{margin:20px 0 0;font-size:11.5px;line-height:1.65;color:rgba(185,178,204,.72)}

.pa-dau{display:flex;align-items:center;gap:10px;margin:0 0 14px}
.pa-quay{width:32px;height:32px;flex:0 0 auto;border-radius:50%;cursor:pointer;font-size:19px;line-height:1;
  border:1px solid rgba(255,255,255,.16);background:rgba(0,0,0,.28);color:var(--ink)}
.pa-quay:hover{background:rgba(255,255,255,.12)}
.pa-ten{font-size:16px;font-weight:500;color:var(--ink)}
.pa-hinh{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:center;gap:10px;margin-bottom:16px}
.pa-hinh svg{max-width:100%;height:auto}
.pa-moi{flex:0 0 auto;width:132px}
.pa-khoi{margin:0 0 14px;padding:13px 14px;border-radius:14px;
  border:1px solid var(--line);background:rgba(255,255,255,.035)}
.pa-khoi.pa-mo{border-style:dashed;opacity:.85}
.pa-nhan{margin:0 0 6px;font-size:11px;letter-spacing:.11em;text-transform:uppercase;color:rgba(232,195,122,.72)}
.pa-chu{margin:0;font-size:13.5px;line-height:1.7;color:var(--ink)}
.pa-chu.pa-nho{font-size:12.5px;color:var(--ink-dim)}
.pa-chu.pa-thua{margin-top:8px;font-size:11.5px;color:rgba(185,178,204,.7)}
.pa-bieu{margin:4px 0 8px;text-align:center}
.pa-bieu svg{max-width:100%;height:auto}
.pa-tu,.pa-cap,.pa-doi{display:flex;flex-wrap:wrap;gap:8px}
.pa-tu-nut{cursor:pointer;padding:8px 13px;border-radius:999px;font-size:13.5px;
  border:1px solid var(--line);background:rgba(232,195,122,.07);color:var(--ink)}
.pa-tu-nut:hover{background:rgba(232,195,122,.16)}
.pa-cap-nut{flex:1 1 150px;display:flex;flex-direction:column;gap:3px;cursor:pointer;text-align:left;
  padding:11px 13px;border-radius:12px;font-size:14px;
  border:1px solid var(--line);background:rgba(255,255,255,.04);color:var(--ink)}
.pa-cap-nut:hover{background:rgba(232,195,122,.1)}
.pa-cap-nut i{font-style:normal;font-size:11.5px;color:var(--ink-dim)}
.pa-doi{margin-bottom:14px}
.pa-doi-nut{flex:1 1 130px;display:flex;flex-direction:column;align-items:center;gap:3px;cursor:pointer;
  padding:14px 12px;border-radius:14px;border:1px solid var(--line);background:rgba(255,255,255,.04);color:var(--ink)}
.pa-doi-nut:hover{background:rgba(232,195,122,.1)}
.pa-doi-nut b{font-weight:500;font-size:17px}
.pa-doi-nut i{font-style:normal;font-size:11px;color:rgba(232,195,122,.7)}
.pa-gui{margin:0 0 9px;padding:9px 11px;border-radius:10px;font-size:11.5px;line-height:1.6;
  border:1px solid rgba(232,195,122,.2);background:rgba(232,195,122,.06);color:rgba(244,239,230,.86)}
.pa-mic{width:100%;cursor:pointer;padding:14px;border-radius:14px;font-size:14.5px;
  border:1px solid rgba(232,195,122,.4);background:rgba(232,195,122,.13);color:var(--ink)}
.pa-mic:hover{background:rgba(232,195,122,.2)}
.pa-mic.dang{border-color:rgba(226,140,134,.55);background:rgba(226,140,134,.16);animation:pa-tho 1.4s ease-in-out infinite}
@keyframes pa-tho{0%,100%{opacity:1}50%{opacity:.62}}
.pa-loi{margin:0 0 9px;font-size:12.5px;line-height:1.6;color:var(--ink-dim)}
.pa-loi.nang{color:#f0a9a3}
.pa-luot{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:8px}
.pa-luot span{padding:5px 10px;border-radius:999px;font-size:12px;border:1px solid var(--line)}
.pa-luot span.dung{border-color:rgba(150,205,160,.4);background:rgba(150,205,160,.12);color:#bfe2c6}
.pa-luot span.sai{border-color:rgba(226,140,134,.35);background:rgba(226,140,134,.1);color:#f0bcb8}
@media (max-width:420px){ .pa-moi{width:112px} .pa-ipa{min-width:50px;font-size:14px} }
.pa-doi-hinh{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-bottom:16px}
.pa-doi-hinh .pa-hinh{flex:1 1 240px;max-width:320px;margin:0;display:flex;flex-wrap:wrap;
  align-items:flex-end;justify-content:center;gap:8px}
.pa-doi-hinh figcaption{flex:1 0 100%;margin-top:6px;text-align:center;font-size:12px;line-height:1.5;color:var(--ink-dim)}
.pa-doi-hinh figcaption.pa-sai{color:#f0a9a3}